In 2003 I began to supplement my contractor income by writing OS X apps as a sole indie developer and eventually went full time. In the first six years I made enough to live on.

In 2008, mostly out of curiosity, I wrote a free iOS app and started a small company to publish it. This company made no revenue in its lifetime but was acquired this year. My return from that acquisition exceeds the revenue I earned from my desktop business (for every year combined).

Chances that I return to desktop app development? Zero.

To be honest, it is bittersweet. I love the desktop, but that's really not where users are anymore. Skate to where the puck is going to be and all that.